Knotter.



B. E. BYRD.

KNOTTER.

APPLICATION FILED APR.5,1918.

mama Oct. 22, 1918'.

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Find-d.

BRITTON E. BYRD, OF DURHAM, NORTH CAROLI NA, ASSIGNOR TO MILLS DEVIGES COM PANY, 0F DURHAM, NORTH CAROLINA, A CORPORATION OF NORTH UAROLIEA.

KNOTTER.

Specification of,I.etters Patent.

Patented 0st. 22, Edie.

' Application filed April 5, 1918. Serial No. 226,824.

To all whom it may concern:

Be it known that'I', BRITTON E. BYRD, a citizen of .the United States, residing at Durham, "in the county of Durham and State of North Carolina, have invented new and useful Improvements in Knotters, of which the following i a specification.

This invention relates to certain novel and useful improvements in knotters and has particular applicationto a manually, operated knotting device adapted to be employed for the purpose of securing together the ends of threads, provision being made for temporarily but securely attaching the device to a hand of the operator.

In the present instance, it is my purpose to provide a knotting device of this ty e composed of but relatively few parts u rich are so constructed and correlated as to rapidly, positively, efliciently and securely tie the knot and to sever the ends of the threads adjacent the knot.

Furthermore, I propose to provide a knotter wherein the parts areof exceedingly compact construction and of such character that they may be stamped or otherwise formed from sheet metal, thus dispensing with the use of expensive and tedious machine work and skilled labor, and thereby reducing the cost of production of the device to a minimum. I

Another object of the invention is a provision of a knotter wherein the parts may be readily and quickly assembled, and are so few in number that the complete device is a far simpler mechanism than the complicated prior devices of this general character with which I am acquainted, and, in addition to this, my knotter from the standpoint of structure, possesses advantages of stability; durability, and freedom from derangement not ordinarily incident to the usual form of knotter.

It is also my purpose to provide a device of this character which may be sold to the ultimate purchaser at a relatively low cost.

With the above recited objects and others of a similar nature in view, my invention consists in the construction, combination and arrangement of parts set forth in, and fallng within the scope of the appended claims.

In the accompanying drawings:

Figure 1 is a view in side elevation of a knotter embodying my invention.

Fig. 2 is a perspective view thereof looking at the device from the opposite side to that shown in Fig. 1.

Fig. 3 is a perspective view with the casing cap removed.

Fig. 4 is a view in side elevation of substantially so much of the structure as is shown in Fig. 3, and showing the tying bill and the operating thumb lever therefor in normal position.

Fig. 5 is a similar view to that shown in Fig. 4 and showing the thumb lever inits' depressed position after the knot has been tied and the thread stripped.

Fig. 6 is a detail view indicating both the open and closed positions of the tying .bill.

Fig. 7 is a vertical sectional view taken through the assembled knotter such as is shown in Figs 1 and 2.

Fig. 8 is a detail perspective view of one of the side plates of the knotter looking at the inner face of such plate.

Fig. 9 is a perspective view of the supporting arm which is carried by the grip or handle.

Referring now to the accompanying drawings in detail, the numeral 1 indicates the handle or grip of the device whicn is in the nature of a flat plate provided with an angular end 2, while 3 is a strap connecting the ends of the grip and serving to fasten the device onto the hand of theoperator. This grip-1, like other parts of the device, is preferably stamped or otherwise formed from sheet metal so that the entire structure may be economically manufactured. Preferably formed integral with the gtip 1 is'a curved supporting arm 4, the upper free end of which has an elongated perforation 5. At this free end of the arm is carried the casing A, which contains and embraces certain of the operating parts of the device. This casing A includes a stationary side plate 6 and a detachable cap 7, the latter embracing the side plate 8 and the circu liar wall 9' fast with the side plate 8. The stationary side plate 6 is formed at its upper end with a straight edge 10 from which extends the ofifset upwardly projecting thread book which is bent or distorted outwardly,

as shown in Fig. 7. The side late 6 which through which projects the foot Plate 33 of the bracket. A locking member 42, n the present instance in the nature of a Wire loop or pin may now be passed through the projecting bight of the upper section of the bracket and hooked through an opening in the foot plate so as to firmly secure the parts together as will be understood by reference to Fig. 2.

The knotter is now ready for operation and as the manner of employing these knotters is well understood, 1 will make but brief reference to the same in the present instance. The ends of the thr ad to be knotted are placed as usual so as to lie beneath the hooked thread guides or thread holding arms and so as to pass beneath the tying bill. The lever is now depressed against the action of the coiled spring by the operator pressing the thumb against the lever and this will result in the giving to the bill a rotary movement due to the circular rack operating on the bill shaft and at the same time the bill with its bracket and also the casing cap will be moved in a path of travel downward and backward relative to the stationary side plate 6 as shown in Fig. 5. In a word, as the cap section of the casing with the tying bill bracket and the bill itself are all rotatably mounted relative to the stationary side plate 6 of the casing by means of the bolt 1% such cap section and its connected parts including the bill, will be swung by the pressure of the operators thumb from the position shown in Fig. 2 to that indicated in Fig. 5. The character of the knot formed and the thread shearing or cutting operation will be understood by reference to my earlier Patent, No. 870,527, dated November 5, 1907. At the first part of this rotation and oscillation of the bill. the latter which is closed, Will take up slack to form a loop in the threads and the continued movement of the bill will cause the latter to *radually open and assume its shearing position as is common in devices of this sort. At the same time, the clamp 37 will rise to clamp the threads, while the slack is taken up by the downward and rearward movement of the thread guide 12 carried by the oscillating cap and the knot is tied. After the knot is tied, the bill will close to cut the ends of the threads and the knotted thread will be stripped from the bill. Upon the operator releasing pressure upon the thumb lever, the spring will return the parts to normal position.

It will be seen that as distinguished from the usual kno'tters of this class, I cause the lving bill as well as one of the thread guides tb oscillate in addition to giving the bill the usual rotary movement, and this oscillation of the bill and guide takes place relative to the thread holding and thread clamping members carried by the stationary side plate. And, furthermore,'in the thread clamping members at the stationary side plate, the slight upward and forward movement due to the segmental slot and the stud of the clamp Working therein will cause the thread 'to be first. clamped during the knot tying operation and then stripped from the tying bill after the knot has been tied.

It will also be noted that all of the parts of my device may be made very economically as they can be stamped or otherwise formed from sheet metal and that as compared with the complicated relatively cumbersome knotters now in use, this device presents a comparatively small lightconstruction which may be easily manipulated to tie the knots.

While I have herein shown and described one particular embodiment of my invention, I wish "it to be understood that i do not confine myself to all the precise details of construction herein set forth by Way of illustration, as modification and variation may be made Without departingi'rom the spirit of the invention or exceeding the scope oi' the appended claims.

What I claim is 1. In a knotting device, the combination with a support adapted to be attached to a hand of the operator, of'a member statiouary Withthe support and provided with a thread holding arm, thread clamping means pivotally associated with said memberand movable relative to the thread holdin arm, a casing cap associated with the stationary member to form a complete casing there with, said cap having a thread guide, a tying bill interposed between the thread guide of the cap and thread holdingarm of the stationary member, and operating means for rotating the tying bill and for simultaue ously oscillating the cap and the said tying bill.

In a knotting device, the combination of a support, of a side plate stationary therewith and provided with a thread holding arm, a bolt extending through said plate, a bracket mounted to turn on said bolt, :1 thread clamp connected with said bracket and associated with and movable relative to the thread holding arm of the side plate, a tying bill rotatably mounted in the bracket, a cap provided with a thread guide, operatiug means for rotating the tying bill and simultaneously bodily swinging said bill and the cap with its thread guide, and means for returning the parts to normal position.

3. In a knotting device, the combination of a supporting arm, a plate member stationarily mounted thereon and having a thread holding arm, a thread clamp associated nil-l1 the thread holding arm, a tying bill bracket mounted to turn relative to the stationaryplate, a tying bill mounted to rotate in said bracket, means including a curved rack engaging spaced slots in the shaft of the tying bill for rotating the latter in the bracket, a cap connected with said bracket and provided with a thread guide, and means for turning the bracket to bodily swing the cap and its tying bill, and means for returning the bracket with the cap and tyingbill to normal position.

l. In a knotting device, the combination with a supporting arm, of a casing associated therewith and comprising a stationary section and a bodily movable section, a

thread holding member carried by one 05 said sections, a thread clamp associated with the thread holding member, a thread guide carried by the other section, a tying bill, and means for actuating the tying bill and simultaneously moving the bodily movable section of the casing relative to to the stationary section of such casing.

5. in a knotting device, the combination of acasing comprising a stationary section and a movablesectiomsaid stationary section having thread holding and clamping means, said movable section having a thread guide, a rotatable tying bill, means imparting a rotary movement to the tying bill and an oscillating movement to said bill and to the movable section of the casing.

6. in a knotting device, the combination of a support adapted to be carried on the hand, a casing including two sections, one of which is movable relative to the other,

thread holding and clamping means carried by one of said sections, a thread guide carried by the other section, a tying bill, and means for rotating and oscillating the tying bill and simultaneously oscillating one or the sections the casing relative to the other section of such casing.

7. in a knotting device, the combination of a support adapted to be carried on the hand, a casing, a tying bill bracket mounted to turn relative to one side of the casing, said bracket having portions projectin through the opposite side of the casing, means for locking the bracket to the last mentioned. side of thecasing, whereby the casing will be assembled, thread holding and clamping means carried by one side of the casing, a

vthread guide carried by the other side of the casing, and a tying bill operatively associated with the thread holding and clamping means and the thread guide.

8. In a knotting device, the combination with a support adapted to be carried on the hand, of stationarythread holding means.

ivoted thread clamping means associated with the thread holding means, a knot tying bill and thread guiding means both normally located substantially in lateral alinemcnt with the stationary thread holding means, means for rotating knot tyii" bill, and means for oscillating both the thread guide ant. the knot tying bill relative to the sta tionary thread holding means.

9. in a knotting device, the combination with a support adapted to be carried on the hand, of an arm projecting from said support, a cylindrical casing carried by said arm and including a stationary side plate and an oscillating side plate, thread holding and clamping means carried by one of said plates, a thread guide carried by the other or" said plates, a tying bill located between the two plates of the casing, and means for simultaneously oscillating both the tying bill and the oscillating side plate oil the casing.

10. in a knotting casing vided with a projecting thread engaging hook, a-tying bill located between the side plates and normally positioned substantially in lateral alinement means for rotating the tying bill,vand means for simultaneously swinging said bill and one of the side plates relative to the other side plate.

11. ln a knotting device, a cylindrical casing having a pair of opposed substantially circular side plates, each provided Withfan integral thread engaging hook, one of said plates being movable relative to the other, and a rotatable tying bill operatively associated with said hooks.

12. in a knotting device, a cylindrical casing including a pair of side plates, each having a projecting thread engaging hook, thread clamp associated with one of said hooks, rotating tying bill interposed between said plates, and means for swinging the tying bill and one of said plates relative to the other plate.

13. in a knotting device, a support, and a shaft carried thereby, a stationary plate mounted on the shaft and having a thread engaging hook, a bracket mounted to swing on said shaft and including a dis-k through which the shalt projects, and spaced laterally extending portions projecting from said disk, a tying bill journaled in the laterdevice, a cylindrical ally projecting portions of the bracket, a-

rack engaging with a portion of the tying bill for rotating the latter, a swingingplate connected to and swinging with the bracket, and a finger plate projecting from the bracket and adapted to be manipulated to simultaneously swing the bracket, the tying bill and the swinging plate.

i l. in a knotting device, the combination with a support adapted to be attached to the hand of an operator, of a member stationary with the support and provided with a thread holding arm terminating in a thread en 'aging hook, thread clamping member pivotally associated with the stationary member and movable relative to the thread holding with the hooks thereof,

having opposed side plates, each pro- 1 esson arm, said clamping member having a pair of terminal fingers lying one at each side of the hook of the thread holding arm, a swinging thread guide normally positioned opposite the thread holding arm and also having a thread engaging hook, a rotating tying bill loeatedbetween and in spaced relation to the thread holding guide and the thread holding arm, means for rotating the tying bill, andmeans for simultaneously swinging both the thread guide and the tying bill relative to the thread holding arm.

15. In a knotting device, a support adapted to be carried on the hand, an arm extending from said support, a shaft car ried by said arm, a casing including a pair of side plates, one of which plates is mounted on the shaft and held secured against movement thereon, a thread engaging hook projecting from the stationary side -said tying bill may be rotated, a movable side plate for the casing connected with said bracket and turnable therewith, a thread guide on the movable side plate and a finger piece projecting from the latter and operable to turn the bracket and movable side plate and to swing the tying bill.

In testimony whereof I have hereunto set my hand.

BRITTQN E. BYRD. 

